Properties of the Number 78040

Seventy-Eight Thousand Forty

Basics

Value: 78039 → 78040 → 78041

Parity: even

Prime: No

Previous Prime: 78031

Next Prime: 78041

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 × 1951

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1951, 3902

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011000011011000

Octal: 230330

Duodecimal: 391B4

Hexadecimal: 130d8

Square: 6090241600

Square Root: 279.3564031841762

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = 2n·a(n-1) - (n-1)²*a(n-2). A2793

Numerators of continued fraction for alternating factorial. A56952

a(n) = 40*(200·n - 49). A157652

Number of maximal sets of partitions of n with property that all parts in all partitions in the set are distinct. A68598

Number of inequivalent n X 4 binary matrices, where equivalence means permutations of rows or columns or the symbol set. A246149

Number of inequivalent n X 10 binary matrices, where equivalence means permutations of rows or columns or the symbol set. A246155

Expansion of (1-x)/(1+x-2·x²+2·x³). A78040